Home / 5,220.45-7,200.03-4,589.64

Finding the Fourth Proportional to 5,220.45, 7,200.03 and 4,589.64

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Solution

The fourth proportional to 5,220.45, 7,200.03 and 4,589.64 is: 6,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.45 : 7,200.03 = 4,589.64 : x
  2. Step 2: Convert to fraction form
    5,220.45/7,200.03 = 4,589.64/x
  3. Step 3: Cross multiply
    5,220.45x = 7,200.03 × 4,589.64
  4. Step 4: Simplify right side
    5,220.45x = 33,045,545.69
  5. Step 5: Solve for x
    x = 33,045,545.69/5,220.45
  6. Step 6: Final answer
    x = 6,330.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.